As a sample program,gss-client performs some functionsfor demonstration purposes. The following source code is not essential forthe basic task, but is provided to demonstrate these other operations:
Saving and restoring the context
Displaying context flags
Obtaining the context status
The source code for these operations is shown in the following example.
Example 16 GSSAPI Clientcall_server() Function to Establish Context/* Save and then restore the context */ maj_stat = gss_export_sec_context(&min_stat, &context, &context_token); if (maj_stat != GSS_S_COMPLETE) { display_status("exporting context", maj_stat, min_stat); return -1; } maj_stat = gss_import_sec_context(&min_stat, &context_token, &context); if (maj_stat != GSS_S_COMPLETE) { display_status("importing context", maj_stat, min_stat); return -1; } (void) gss_release_buffer(&min_stat, &context_token); /* display the flags */ display_ctx_flags(ret_flags); /* Get context information */ maj_stat = gss_inquire_context(&min_stat, context, &src_name, &targ_name, &lifetime, &mechanism, &context_flags, &is_local, &is_open); if (maj_stat != GSS_S_COMPLETE) { display_status("inquiring context", maj_stat, min_stat); return -1; } if (maj_stat == GSS_S_CONTEXT_EXPIRED) { printf(" context expired\n"); display_status("Context is expired", maj_stat, min_stat); return -1; }